Commit Graph

4 Commits

Author SHA1 Message Date
Andrew Tridgell a452f8e4ed switch optimisation to O2
on average makes for faster and smaller code than O3
2019-10-06 10:58:07 +11:00
Peter Barker ce53ae63ae AP_Math: use /2 in place of *0.5f
MdB says:

dividing by 2 is actually optimal. It's type correct for all usage, and the compiler generates the multiplication if it's float, and sticks with divide for integers

Godbolt indicates on any optimization level (O1-O3, and Os) that the compiler will correctly optimize the / 2 into a float multiplication if using a float, but if using integer types in the template it will stick with the / 2 which is faster then doing the conversions to/from float.
2019-04-05 23:04:17 -07:00
Peter Barker 39ae285a7f AP_Math: add floating point constant designators 2019-04-05 23:04:17 -07:00
Andrey Kolobov a1fa2a9de3 AP_Math: added matrixN for soaring controller 2017-03-14 08:35:44 +11:00